叶的

In fact, the multiplicity is caused by the reason that there are a lot of techniques to fractionalize the eigenvalues of Fourier transform in the procedure of constructing the fractional Fourier transform.

实际上，分数傅立叶变换的多样性主要是由傅立叶变换的特征值在构造分数傅立叶变换时可采取不同的分数化方法所决定的。

The results showed that the growth of Jinguang plum seedlings were remarkably restrained by salt stress. With the increasing of salt concentration, the plant height, leaf area, leaf fresh weight, leaf dry weight, stem dry weight and root dry weight were remarkably decreased, and the chlorophyll content, photosynthesis rate, transpiration rate and stomatic conductance in leaves were declined too, but the intercellular CO2 concentration was inclined.

结果表明盐胁迫抑制了金光杏梅幼苗的生长，随着盐浓度的升高，金光杏梅的株高、叶面积、叶鲜重、叶干重、茎干重、根干重均显著降低；叶片叶绿素含量、净光合速率、蒸腾速率、气孔导度亦显著降低，且盐浓度越高，下降幅度越大；细胞间隙CO2浓度随着盐浓度增加而增大，表明盐胁迫下非气孔因素是导致金光杏梅叶片光合速率下降的主要原因。

This paper determined the olfactory respones of Tetranychus viennensis to different plants odors with "Y" olfactometer and petri-dish, volatiles from leaves of different plants were absorbed with SPME and analyzed with GC-MS (gas chromatograph-mass spectrometer). At the same time, the effects of different host plants on the development of Tetranychus viennensis were determined by means of the leaf-dish rearing method , in addition, the contents of some chemicals in the leaves of different plants were also determined.

本文用&Y&形嗅觉仪法和培养皿法测试了山楂叶螨Tetranychus viennenis Zacher对不同植物气味物质的嗅觉反应，并利用固相微萃取SPME吸附、用气相色谱—质谱联用仪GC-MS(gas chromatograph-mass spectrometer)分析了不同植物叶片的挥发性物质成分：同时采用海绵水盘法饲养山楂叶螨，研究了不同植物对山楂叶螨生长发育的影响，并测定了不同植物叶片中一些生化物质的相对含量。

In the vaneless diffuser, which was little bigger than that of vaneless diffuser. The reason was the intervention of vane enhanced the unsteady degree of the flow and expanded the unsteady effect region.

叶轮对有叶扩压器内部非定常流动的影响也没有维持到有叶扩压器的出口，非定常影响区域为大约在半径r/r〓=1.3以内的区域范围，略大于无叶扩压器内的非定常影响区域。

Results indicated that full defoliation was the key measure to autumn reflowering,and from late August to early September was the optimum defoliation time in Heze,Shandong Province.Chemical defoliators like abscisic acid and ethephon could advance the flowering time of three autumn-flowering cultivars 2—6 days,and had a better effect on the reflowering quality and leaf development than artificial defoliation.

结果表明：全株脱叶是实现牡丹二次开花的关键措施，在山东菏泽地区以8月下旬至9月上旬为适宜的脱叶时间，脱落酸、乙烯利等化学脱叶药剂处理使秋发1、2、3号品种的二次开花时间提前2～6 d，显著提高了植株二次开花质量，尤其是明显促进了二次叶片的发育。

The optimum processing conditions for the preparation of sodium copper chlorophyllin from saponified paste of pine needles are as follows: sodium chlorophyllin is clarified by adding water ratio of water to paste 5:1

从皂化的松针软膏制备松针叶绿索铜钠的最适工艺：叶绿酸钠澄清用水量为松针软膏重量的5倍；叶绿酸钠沉淀时，20％浓度硫酸铜溶掖用量为松针软膏重量的10—11％。

There was no apparent structure of vasicular bundle sheath in the leaves. Thick cuticle layer was found on both abaxial and adaxial surfaces.

荔枝叶片叶肉组织内细胞的排列，除了在5天叶龄的幼叶排列非常紧密之外，其余叶龄的叶肉组织都会发现有空隙的存在。

The prior research of Research and Development Center of Biorational Pesticide Northwest Agriculture and Forest University indicated that the clove leaf essential oil and cinnamon essential oil had good effect of fresh-keeping.

西北农林科技大学无公害农药研究服务中心的前期研究结果表明丁香叶油和肉桂精油具有较好的保鲜效果，本论文以砀山酥梨为测试对象，在对丁香叶油和肉桂精油保鲜配方筛选的基础上，对丁香叶油保鲜剂的加工剂型进行了研究，得出以下结果： 1。

The physiologic changes of leaf vegetables after picked and the basic principles of the technology for keeping fresh were discussed. The effect of MAP on leaf vegetables stored in different component gas at normal temperature was studied with cabbages, caraways, leeks, to select the best packaging atmosphere for keeping leaf vegetables fresh.

论述了叶菜类蔬菜采后的生理变化和气调包装保鲜的基本原理，并以小白莱、香菜和韭菜为例，对常温叶菜在不同气体成分下的气调保鲜进行了实验研究，提出了适合叶菜气调包装保鲜的最佳气氛配比。

Stem/leaf ratio of all of seven lines was lower than that of the corresponding alfalfa varieties in both cutting. In the first cutting stem/leaf ratio of BHJR5 was the lowest and in the second cutting stem/leaf ratio of BHSHS6 was the lowest.

57个白花品系第一茬和第二茬的茎叶比均小于相应的紫花母株，其中第一茬BHJR5的茎叶比最小，第二茬BHSHS6的茎叶比最小。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。